Noktok:
Since the cars and pool are showing, its looks like a problem with the Material(s) assigned to the walls, roofs and grade. Check the settings of the
Materials assigned to these elements under the
LightWorks pop up in the
Materials dialog box. If the Internal Engine settings are good, then you can start with the
Match with Internal Engine button.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David